436 Stainless Steel
UNS S43600
Description
436 stainless steel is a modification of 430 stainless steel with columbium and molybdenum added to reduce the tendency of wavy lines, or roping, during forming. This alloy has excellent formability and corrosion resistance due to its high chromium content (18%). It also exhibits good weldability with a low melting point which is beneficial for welding processes that require high temperatures. Additionally, this alloy has good ductility, which allows it to be easily formed into desired shapes without sacrificing strength or durability. 436 stainless steel is magnetic in both annealed and cold rolled tempers and can be resistance welded, brazed, and soldered.
Chemical Component
| Cr | Ni | Si | C | Mn | Mo | S | P | Nb + Ta | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 16.00-18.00% | 0.50% max | 1.00% max | 0.12% max | 1.00% max | 0.75-1.25% | 0.030% max | 0.040% max | 5xC min-0.70% max | Balance |
Basic Information
| Items | 436 Stainless Steel |
|---|---|
| Catalog | ACMA-Fe-A024 |
| Density | 0.28 lb/in3, 7.74 g/cm3 |
| Electrical Resistivity, microhm-in (microhm-cm) | 68 °F (20 °C): 23.68 (60) |
| Specific Heat, BTU/lbl °F (kJ/kg·K) | 32-212 °F (0-100 °C): 0.11 (0.46) |
| Thermal Conductivity, BTU/hr/ft2/ft/°F (W/m·K) | At 212 °F (100 °C): 15.1 (26.1); At 932 °F (500 °C): 15.2 (26.3) |
| Mean Coefficient of Thermal Expansion, in/in/°F (µm/m·K) | 32-212 °F (0-100 °C): 5.8 x 10-6 (10.4); 32-1000 ° F (0-538 °C): 6.3 x 10-6 (11.4) |
| Modulus of Elasticity, ksi (MPa) | 29 x 103 (200 x 103) in tension |
| Magnetic Permeability | Magnetic |
| Melting Range | 2600-2750 ° F (1427-1510 °C) |
Material Forms
Alfa Chemistry offers 436 stainless steel in a variety of forms, including Coil, Strip, Foil, Ribbon, Wire.
Mechanical Properties
- Mechanical properties at room temperature: annealed
| Ultimate Tensile Strength | Yield Strength (0.2% Offset) | Elongation | Hardness |
|---|---|---|---|
| 77 KSI min (531 MPa min) | 53 KSI min (365 MPa min) | 22% min | Rb 89 max |
Additional Properties
Corrosion Resistance: Refer to NACE (National Association of Corrosion Engineers) for recommendations.
Cold Forming: 436 stainless steel is readily drawn and formed. Its drawing characteristics are similar to those of low carbon steel, although it is stronger in the annealed condition and will require stronger tooling and increased power. It is also adaptable to most hot-forming operations. It does have a slightly tendency to "rope" during forming, but it is minimized by the addition of colombium.
Welding: For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".
Applications
- Automotive exhaust applications
- Stretch formed aerospace applications
- Automotive trim
- Architectural screens
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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